awesome Al, glad you like them and it's nice that the 4.77s aren't looked at as auto-x use only anymore. Here come the 5.1s mmm. Glad to see you have been seeing similar results with gas milage as I since we seem to be the only people on this board that get consistant gas milage with gear swaps. Others beg to differ and insist that running at 600 more rpms will significantly reduce gas milage.

 

I suspect that the aerodynamics of the S plays a bigger role at highway speeds. The gearing has always been tilted towards performance but the aerodynamic drag is more like that of a brick (compared to mainstream sedans)...

 

I guess when I put my new tires on my car(20 EXTRA pounds of rubber weight) I didn't pay attention to my MPG. Only after installing the gears I paid much more attention to it. So I see a much bigger difference.

I also have a test pipe on the car but that will come off soon and see if MPG changes.

As I was virtually the only person with the 4.77's at the time I had no comparison. I guess my MPG drop is related to something other than just gearing. Probably is partially related to my lead foot around town. Though that really hasn't changed much though the RPM's just go 600 rpm's higher.

 

pinky what gear set do you have, i might meet you up in connecticut some day and do a stock vs gear moded S, are you up for it?

 

I have the 4.77's. I am up for anything!!!!!!!

I just need to know when/where and I will see what I can do.